We all know ledger Nano S as Bitcoin hardware wallet had another function as hardware 2fa. we don't need to buy another hardware 2fa like Yubikey, Fido u2f, Google Titan, and etc.
What is hardware
2fa? hardware for
confirming users’ claimed identities by using a combination of two different pieces of information or factors. Like Google, Facebook, or exchange. You don't need to download google 2fa, authy, and aegis, you just need to connect the ledger into a PC or phone to solving 2fa.
why we need hardware 2fa?. because we all know the scammer out there had methods and technical skills to watching your phone and 2fa SMS to solving another gadget.
https://www.mdsny.com/hackers-can-bypass-two-factor-authentication-with-new-scam/
How to set up1. Open the ledger live application by download
https://www.ledger.com/ledger-live and don't forget to update your firmware to the latest version.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2FpXg3ZR2d%2F11.jpg&t=665&c=zJiZtPsxPO7xFQ)
2. connect Ledger hardware wallet into PC, go to tab manager in a left application, searching in-app catalog
fido U2F, then installing.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2FwTZ3Qyys%2F22.jpg&t=665&c=jadd2LbGLzNlCQ)
3. let's confirming in your ledger the Fido application has installed.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2FP5506vdd%2Fledgerr.jpg&t=665&c=wD9wX6FMZiigiw)
so, we are done here. your ledger was setting up as a bitcoin wallet and hardware 2fa.
Hot to use? example in google.
1. login into a google account and go to the 2fa page and searching security key to register
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2F5tsLF5Xv%2F22.jpg&t=665&c=ZHENQXk7kJXURg)
let's confirming in a ledger to registering, from now security key added into a google account, If you lost your ledger you will be lost your 2fa. but, if you keep 12-24 mnemonic seed you will be fine, you can restoring into a new ledger wallet using the same seed with the same 2fa key.
I make an example of connecting into google.
1. after login, google will ask my security key to connect it to pc
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2FXJd6dZb4%2Fqq.jpg&t=665&c=WYF3BwAXm6GNKQ)
2. in my ledger device also warn me to sign 2fa.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2Ffb6JM0CN%2Fphoto6062395271322643293.jpg&t=665&c=iocqBr17PSQT-A)
so we are done, My google account had set up as ledger hardware 2fa also.
your ledger can to be use for security exchange also such
binance,
Gemini,
coinbase and etc.
with this guide, you got double, ledger as hardware wallet and ledger as hardware 2fa, keep safe your money.
original threaddo with your own risk